「PHP入門」DateInterval クラスのサンプル
書式
DateInterval オブジェクトを生成する一般的なやり方は、 2つの date/time オブジェクトの差分を DateTimeInterface::diff() 経由で計算することです。
使用例
<?php
$d1=new DateTime("2021-01-17 11:14:15.638276");
$d2=new DateTime("2021-01-08 11:14:15.889342");
$diff=$d2->diff($d1);
echo "<pre>";
print_r( $diff ) ."<br>\n";
echo "</pre>";
?>
<?php
$d1=new DateTime("2021-01-17 11:14:15.638276");
$d2=new DateTime("2021-01-08 11:14:15.889342");
$diff=$d2->diff($d1);
echo "<pre>";
print_r( $diff ) ."<br>\n";
echo "</pre>";
?>
<?php
$d1=new DateTime("2021-01-17 11:14:15.638276");
$d2=new DateTime("2021-01-08 11:14:15.889342");
$diff=$d2->diff($d1);
echo "<pre>";
print_r( $diff ) ."<br>\n";
echo "</pre>";
?>
実行結果
DateInterval Object
(
[y] => 0
[m] => 0
[d] => 8
[h] => 23
[i] => 59
[s] => 59
[f] => 0.748934
[weekday] => 0
[weekday_behavior] => 0
[first_last_day_of] => 0
[invert] => 0
[days] => 9
[special_type] => 0
[special_amount] => 0
[have_weekday_relative] => 0
[have_special_relative] => 0
)
DateInterval Object
(
[y] => 0
[m] => 0
[d] => 8
[h] => 23
[i] => 59
[s] => 59
[f] => 0.748934
[weekday] => 0
[weekday_behavior] => 0
[first_last_day_of] => 0
[invert] => 0
[days] => 9
[special_type] => 0
[special_amount] => 0
[have_weekday_relative] => 0
[have_special_relative] => 0
)
DateInterval Object
(
[y] => 0
[m] => 0
[d] => 8
[h] => 23
[i] => 59
[s] => 59
[f] => 0.748934
[weekday] => 0
[weekday_behavior] => 0
[first_last_day_of] => 0
[invert] => 0
[days] => 9
[special_type] => 0
[special_amount] => 0
[have_weekday_relative] => 0
[have_special_relative] => 0
)